Gray matter alterations related to P300 abnormalities in subjects at high risk for psychosis: Longitudinal MRI-EEG study. - Paolo Fusar-Poli; Nicolas Crossley; James Woolley; Francesco Carletti; Rocío Perez-Iglesias; Matthew R. Broome; Louise Johns; Paul Tabraham; Elvira Bramon; Philip K. McGuire (NeuroImage, 2011)